Evidence map›Paper›PMID 9741367›Full record

ArticleThorax1998

Induction of IL-8 production in human alveolar macrophages and human bronchial epithelial cells in vitro by swine dust.

L Palmberg, B M Larsson, P Malmberg, K Larsson

Open access · bronzeAbstract read
In one paragraph

Article in Thorax, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.7field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 110 citations in OpenAlex.

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  9. Bacterial extracellular vesicles isolated from organic dust induce neutrophilic inflammation in the lung.American journal of physiology. Lung cellular and molecular physiology · 2020
    Article
  10. Article
  11. Organic dust induces inflammatory gene expression in lung epithelial cells via ROS-dependent STAT-3 activation.American journal of physiology. Lung cellular and molecular physiology · 2019
    Article
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  15. Toll-like receptor 9 partially regulates lung inflammation induced following exposure to chicken barn air.Journal of occupational medicine and toxicology (London, England) · 2016
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  20. Sputum neutrophil count after bronchial allergen challenge is related to peripheral blood neutrophil chemotaxis in asthma patients.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2014
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

L PalmbergDepartment of Occupational Medicine, National Institute for Working Life, Solna, Sweden.
B M Larsson
P Malmberg
K Larsson
Science for Life Laboratory · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExposure to swine dust causes an intense airway inflammation with increased levels of interleukin 8 (IL-8) and predominantly neutrophils in the nasal and bronchoalveolar lavage fluids of healthy human subjects. It is not clear which components in the swine house environment are responsible for the airway reaction. The aim of the present study was to evaluate and compare the effect in vitro of swine dust components on human alveolar macrophages and bronchial epithelial cells.

methodsNormal human bronchial epithelial cells (NHBE), human pulmonary epithelial carcinoma cell line (A549), and human alveolar macrophages were stimulated with swine dust, lipopolysaccharides (LPS; present in Gram negative bacteria), grain dust (swine feed components), and glucans (a structural component of fungi) in a dose response manner (1-100 micrograms/ml).

resultsSwine dust at a concentration of 100 micrograms/ml increased IL-8 production 20 fold in NHBE cells, 28 fold in A549 cells, and 15 fold in macrophages. LPS (100 micrograms/ml) stimulated all three cell types significantly, in macrophages to the same extent as swine dust, but in NHBE and A549 cells swine dust was 5-8 times as potent. Grain dust (100 micrograms/ml) had no effect in A549 cells and macrophages but not NHBE cells. Both glucans and grain dust were weaker stimuli than swine dust and LPS. The LPS content of swine dust solution was 2.16 (0.2) ng/100 micrograms and of grain dust was 0.53 (0.04) ng/100 micrograms.

conclusionsSwine dust is a strong stimulus for IL-8 production in both bronchial epithelial cells and human alveolar macrophages, whereas LPS has different potency in these cells.

Indexed as

DustSwineAnimalsBronchiCell Culture TechniquesDose-Response Relationship, ImmunologicEdible GrainEpitheliumGlucansHumansInterleukin-8LipopolysaccharidesMacrophages, AlveolarTumor Cells, CulturedDustGlucansInterleukin-8Lipopolysaccharides

Identifiers

PMID9741367
PMCPMC1745198
OpenAlexW2156538370

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.